Locate the driver-side lower dash panel and remove the cover to access the electrical distribution unit, as most cabin-related circuits are grouped in this area.
This compact roadster uses a small panel with clearly numbered slots, each linked to a specific system such as lighting, radio, or instrument cluster. Amperage ratings are typically marked on top of each element, ranging from 10A for low-load circuits to 20A for components like power accessories.
Use the printed layout on the cover to match slot numbers with circuit roles. Incorrect placement can lead to malfunction in multiple systems, especially when dealing with shared power lines for dashboard and signal controls.
Inspect the metal strip inside each component to detect breaks, which indicate failure. Replace only with identical amperage to prevent overheating or repeated shutdown of connected devices.
1994 Mazda Miata interior fuse box diagram with slot numbers and circuits
Match each numbered slot with the printed legend before removal, since adjacent positions may control unrelated systems such as lighting and gauge cluster.
Positions 1–4 typically handle low-load circuits including dash illumination, radio memory, and warning indicators, usually rated at 10A. Slots 5–8 are often assigned to turn signals, brake lights, and wiper control, with ratings increasing to 15A or 20A depending on load. Misplacing even a single insert can disable multiple functions tied to shared wiring paths.
Check each element by inspecting the internal metal strip; a visible break confirms failure. Always replace with identical amperage and confirm alignment with the numbering scheme printed on the cover, as reversed orientation can lead to selecting the wrong position.
Interior fuse box location under dashboard and access steps
Remove the lower dash trim on the driver side to reach the electrical panel, as it sits above the footwell near the steering column.
This unit is mounted behind a small plastic cover integrated into the knee panel. The cover can be released by pulling it outward, revealing a compact grid of slots arranged in rows with printed numbering for identification.
Access steps
- Switch off ignition and disconnect the negative battery terminal
- Locate the panel just above the driver footwell area
- Grip the cover edge and pull gently to release clips
- Use a flashlight to view slot numbers and labels clearly
- Remove components using a puller or narrow pliers
Working space is limited, so adjust seat position fully backward to improve access. A headlamp or angled light source helps avoid misreading slot numbering during inspection.
Reinstall the cover securely after completing checks, ensuring all clips are aligned to prevent rattling or accidental exposure of the electrical panel.